Motor road vehicle



March l0, 1925;.' 1,529,182

A. A. HOLLE MOTOR ROAD VEHICLE Filed July 28, 1924 7 Sheets-Sheet l Q QQm* E C@ I "es l"d 0Minl Nimh 1o, 192s. y 1,529,182

A. A. HOLLE MOTOR nomi vEHIcLn Filed July 28, 1924 v sheets-sheet 2March 10, 1925. 1,529,182

A. A. HoLLE noToR aon vsmcnn,

Filed July 28.V 1924 'l sheets-sheet 5 www Match l0, 1925.

A. A.- HLLE MOTOR nomal VEHICLE Filed July 28, '1924 7 Sheets-Sheet 4:

March l0, 1925.

A. A; .Hor-.LE

uo'ron xoAnv..vsnrcLn F-led July 28, 1924 7 Sheets-Sheet 5 ATTORNEYMarch l0, 1925. 1,529,182

A. A. HoLLE MOTORIOAD VEHICLE Filed -July 285.11924 7 sheets-sheet eMarch l0, 1925. 1,529,182

A. A. HoLLE Moron nom vaincu:

Filed July'z, 1924 'r sheets-sheet v ATTUA/EY Patented Mar. 10, 1925,

UNITED STATES PATENT oFFlcE.

LEXANDER ALBERT HOLLE, 0F LONDON, ENGLAND.

MOTOR ROAD VEHICLE.

Application led July 28, 1.924'. Serial No. 728,791.

To all whom it may concern:

Be it known that I, ALEXANDER ALBERT HoLLu, a. ysubject of the Queen ofthe Netherlands, residing at London, England, have invented a new anduseful Improvement in Motor Road Vehicles, of which the fol'- lowing isa full andcomplete specification.

This invention relates to motor road vehicles and the objects of myimprovements are firstly the construction of an undercarriage andrunning gear which will enable the vehicle to be driven at a highspeedover any roads or ground hoWever-bador however. undulating the characterof, the surface may be; secondly to relieve the wheels of undue sidestresses and the tyres of undue wear and tear; thirdly to relievethesuspension springs of all duties other than suspension; fourthly in roadwheels' employed for steering purposes to maintain the predeterminedangle of castoring constant throughout the movements of said'wheels dueto irregularities -of the road' surface; fifthly to eradicateinvoluntary steering action on the road wheels arising 'from the riseand fall of the said Wheels when they pass over irregularities in theroad surface, and lastly to avoidv the use of telescopic elements. l

I attain these ends by a construction shown in the accompanying drawingsin whichz-Figures 1, 2 and 3, are views in' front elevation, broken sideelevation and broken plan respectively showing the application of theinvention to the chassis of a vehicle in which all the wheels are drivenand employed for .steering purposes.

`marked with like numerals of reference.

Referring to Figures 1, 2 and 3, the stub axles 1 carrying the .roadwheels 2 are mounted on elements 3, which in this case form the steeringheads, which are carried by frame axles each of which consists of two.superimposed rigid bars 4 and 5 arranged and 5 are connected to theelement 3 by pivotal joints 6 and 7' ofthe universal type, and the innerends of said bars are connected to brackets 8 and' 9 respectivelycarried bythe 'frame 29 of the undercarrlage by similar joints 10 and11. l The outer ends of the bars 4 and 5 at or about theirpoints ofattachment to the element 3 are coupled to the frame 29 by means oflinks 12 and 13 which are superimposed and form together torque or staymembers. These links are coupled to the bars 4 and 5 of the frame axleby pivotal joints 14 and 15 of the universal type, and to vbrackets 17and 16 carried directly or indirectly bythe frame 29 by similar joints18 and 19. Theoretically the axes of the joints 18 and 19 should be'inaxial alignment with the axes of the joints 10 and 11 by which the innerends of the bars 4 and 5 are pivoted to the'frame 29 in order to insurethat the castoring angleof the steering wheels remains constant, but asthis is not always convenient the axes of said joints may be locatedapproximate to said positions-as shown in Figures 2 and 3-withoutcausing materially deviation of said angle.

In the constructions shown in Figures 4, 5, I

6 and 7 the axes of the joints 18 and 19 .by which the links formingeach torque or stay member are connected to the frame 29 are arranged inaxial alignment with the bars 4 and 5 are attached to said frame wherebythe movements of the road wheels due to irregularities of the roadsurface, Whether steering or driving' wheels, are, 4as indicated in 'thediagrammatic View Figure axes ofthe joints 10 and 11 by 'which the 8, inthe true vertical plane. It will be seen that with this method ofmounting the road wheels both the propeller shafts and .the linksforming the torque or stay members maintain a uniform length under allconditions thereby dispensing with the use of telescopic driving shaftsand telescopic torque or stay members.

Itwill beobvious that the frame, axles i maybe arranged at any suitableor desired angle relativev to the longitudinal centreline of .theundercarriage other than at right angles as shown in theaccompanyingdrawings.

In order to prevent the rising and falling movements of the road wheelsarising from the irregularities of the road surface from impartinginvoluntary steering action to the road wheels ythe cross link 20employed to connect the steering arms 30 carried by thesteering heads 3of each pair of steering road wheels is arranged in paral-v lelrelationto the members 4 and 5 of the frame axle and is formed in twoparts the ends of each of which are connected respectively to thelinkwork by which the controlling motion is imparted and to the steeringarms 30 by joints 21 and 31. the axes of which are respectively inplanes coincident with lines drawn between the axes of the joints 10 and11 and 6 and 7 respectively.

In the arrangement shownl in Figures 1, 2vand 3, the inner ends of thetwo parts of the cross link 20 are yconnected to swinging arms 22 whichare vcoupled by a link 23, and motion isimparted to one of the arms 22from the usual controlling hand wheel by means -of the usual linkwork.In the arrangement shown in Figure 5a the inner ends of the two parts ofthe cross link 20 are connected to a central part 24 with which the link25 of the vusual linkwork operated by the controlling hand wheel iscoupled through the rockingarm 26.

Suspension springs 2 7 of the usual type are employed and are connectedby links 28 to one or other of the elements 4 and 5 forming each of theframe axles. In the construction shown in Figures l, 2 and 3 thespringsA 27 are.connected to the upper bars 4 and/in .the .constructionshown in\\ Figures 4, 5, 6 and 7 they are connected to the lower bars 5of the frame axles.

What I claim is z j j 1. In a motor road vehicle the combinaltion offour independent axles forV carrying the road wheels each 4of said axlesconsisting of two superimposed rigid bars and a stub axle'carried bysaid bars,vsaid lbars beinor of unequal length, the upper one' being theshorter, and pivotally attached both to said stub axle and to the frameof the undercarr-iage, the location of the points of pivot of the u perbar being at a greater'distance from t e longitudinal axis of the frameof the undercarriage than thatof the lower bar; and of links connectingthe outer ends of the two.bars of each inde-v pendent axle with thevframe of the undercarriage said links being superimposedjand ofequallenf'th. Y

2. Inamotor road vehicle the combination of four axles for carrying .theroad wheels each of said axles consisting of two4 superimposed barscarryin la stub axle, said bars beine: of unequal Iength, the upper onebeing the shorter, andattached both to the stub axle iorxcarryingv oneof the road wheels and to the frame of the under-- carriage by pivotsthe location of that by which the upper bar is pivoted to said framebeing at a greater distance from the longitudinal axis of said framethan the'location of that by which the lower bar is pivoti ed to saidframeyand of links connecting the outer ends of the two bars of eachaxle with the frame of the undercarriage said links being superimposed,of equal. length- -and'pivoted to said frame at points 1n axialalignment with the axes ot' the pivots by which the two bars of the axleare pivoted to the frame of the undercarriage.y

3. In combination in a motor i'oad vehicle, a frame for theundercarriage adapted to carry the running gear, independentnon-rotating frame axles for each road Wheel each of said axlesconsisting of two superimposed rigid bars carrying a stub axle, saidbars being of unequal length, the upper one being the shorter one, andpivotallv attached bothv tothe iraine of the undercarriage and to thestub axle the pivot of the upper bar being at a greater distance Alirointhe longitudinal centre line of said frame than the lower one; and linksconnecting the outer endsA ofv the two bars of each otthe frame axles tothe frame ot"V the undercari'iage each pair of links being superimposed,and pivoted to the frame of the undercarriage. l

4. In combination in a motor road vehicle,- i'

a frame for the undercarriage adapted to carry the running gear,independent non- ;rotating frame axles for each road wheel each of saidaxles consisting of two superimposed rigid bars carrying a stub axle, Ysaid bars being of unequal length, the upper one being the shorter one,and pivotally attached to .the frame of the undercarriage-the upper oneat a greater dis,l

tance from the longitudinal centre line of said frame than the loweroneand to the- 5. InI combination in a motor road vehicle, a frame forthe undercarria e adapted to carry the running gear, in e endentnon-rotating vframe; axles -for eac road wheel 'each of said axlesconsisting of two superimposed rigid bars carrying a stub axle for oneof the road wheels, said bars being of unequal length, the'upper onebeing the shorter one, and pivotally attached to the frame of theundercarriage--the upper one at a greater distance from the longitudinalcentre line of said frame than the lower oneand to an elementcar ing thestub axle; and links connectin t e outer ends of the two bars `of each othe `frame axles to the frame of the undercarriage each pair of linksbein superimposed, of equal length, arranged 1n parallel relation to oneanother and pivoted to the frame of the undercarriage.

6. In combination in a motor road vehicle, a frame for the undercarriageadapted to carry the running gear, inde endent non-rotating frame axlesfor eac road wheel each of said axles consisting of two superimposedrigid bars carrying a stub axle, said bars being of unequal len' th, theupper one being the shorter one, an pivotally attached both to the stubaxle and to the frame of the undercarriage, the upper one at a greaterdistancel from the longi- .tudinal centre line of said frame than thelower one; and two superimposed links connecting the outer ends of thetwo bars of each of the' frame axles to the frame of the undercarriage,said links being pivoted to the frame of the undercarriage inl suchpostions that the axes of the pivots'of said connections are inalignment with the axes of the pivots by which the bars comprising theframe axle are respectively pivoted to the frame of the undercarriage.

7 In a motor road vehicle the combination of four non-rotating axles forcarrying the road wheels each of said axles comprising two rigid bars ofunequal length and a stub axle, the shorter bar being located above thelower bar, said bars being pivoted both to said stub axle and to theframe of the undercarriage the point of pivot of the lower bar to saidframe being adjacent to the longitudinal centre line of said frame andthat of the upper one at a distance from said centre line; torque andstay members connecting the outer ends of the bars constituting each ofthe non-rotating axles with the frame of the undercarriage; andsuspension springs connected to one of the bars coitituting eachnonrotating axle by a lin 8. In a motor road vehicle the combination offour non-rotating axles for carrying the road wheels each of said axlescomprising two rigid bars of une ual length and a stub axle connected tosai bars by a steering head the shorter bar being located above thelower one, said bars being pivoted both to said steering head and to theframe of the undercarriage, the point of pivot of the lower bar to saidframe being adjacent to the longitudinal centre line of said frame andthat of the upper one at a distance from said centre line; torque andstay members connecting the outer ends of the bars constituting each ofthe non-rotating axles with the frame of the undercarriage; suspensionsprings connected to one of the bars constituting each non-rotating axleby a link; and coupling mechanism between each pair of steering wheelscomprising a two-part link connecting the steering arms carried by thesteering heads of thev wheels to the linkwork connecting said two partlink with the mechanism of the hand control of the steering gear, thepoints of pivot of the adjacent ends of the two parts of said link beingin aplanc coincident with a line drawn between the axes of the jointsby. which the two members of the non-rotating axle are pivoted to theframe of the undercarriage.

9. In a motor road vehicle the combination of four non-rotating axlesfor carrying the road wheels each of said axles comprising two rigidbars and a stub axle connected to said bars by a steering head, saidbars being of unequal length,'the shorter one being located above thelower one, and pivoted both to the steering head of the stub axle and tothe frame of the undercarriage the point of pivot of the lower bar tosaid frame being adjacent to the longitudinal centre line of said frameand that of the upper one at a distance from said centre line; torqueand stay members connecting the outer ends of the bars constituting eachof the non-rotating axles with the frame of the undercarriage, saidtorque and stay members being pivoted to said frame in such positionsthat the axes of the pivots of said members are in alignment with theaxes-of the pivots by which the bars of the non-rotating axle arepivoted to the frame of the undercarriage; suspension springs connectedto one of the bars constituting each non-rotating axle by a link; andcoupling mechanism between each pair of steering wheels comprising a twopart link connecting the steering arms carried by the steering heads tothe link-work by which the two-part link is connected with the mechanismof the hand control of the steering gear, the points of pivot of therespective ends of the two parts of said link being in planes coincidentwithlines drawn between the axes .of the j oints'by which the twomembers of the non-rotating axle are pivoted respectively to the frameof the undercarriage and to the steerin head carryin the stub axle.

` AL XANDER BERT I-IOLLE.

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